/* 这是nav区域开始 */
/* 这是nav上面区域 */
.nav_top{
    height: 43px;
    background-color: #252525;
    border: 1px #2e2e2e;
    line-height: 43px;
}
.nav_top_div span{
    color: #fff;
   
}
.nav_top_div .nav_top_div_1 i{
   display:inline-block;
   width: 20px;
   height: 12px;
   background-image: url(../images/tel.png);
   background-repeat:no-repeat ;
   vertical-align: middle;
   
}
.nav_top_div .nav_top_div_1 i:nth-of-type(2){
    background-position-x: 3px;
}
.nav_top_div .nav_top_div_1 span:nth-of-type(1){
    margin-right: 20px;
    
}
/* 这是nav下面区域 */
.nav_bottom{
    height: 103px;
    background-color: #fff;
    line-height: 103px;
}
.nav_bottom ul  li{
    float: left;
    margin-right: 50px;
    cursor: pointer;
}
.nav_bottom ul  li:hover{
    background-image:url(../images/nav_bg02.png);
    background-position: bottom;
    background-repeat: repeat-x;

}
.nav_bottom ul  li a{
    color: #545454;
}
.nav_bottom h1{
    height: 103px;
    padding: 28px 0px 31px;
    box-sizing: border-box;
    margin-right: 371px;
}
.nav_bottom h1 img{
   width: 150px;
   height: 50px;
}

/* 这是nav区域结束 */